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<div class="title">glHelper.cpp</div>  </div>
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<a href="gl_helper_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#include &quot;<a class="code" href="gl_helper_8hpp.html">glHelper.hpp</a>&quot;</span>
<a name="l00002"></a>00002 <span class="preprocessor">#include &quot;<a class="code" href="creature_8hpp.html">creature.hpp</a>&quot;</span>
<a name="l00003"></a>00003 <span class="preprocessor">#include &quot;<a class="code" href="consumable_8hpp.html">consumable.hpp</a>&quot;</span>
<a name="l00004"></a>00004 
<a name="l00005"></a>00005 <span class="keyword">using namespace </span>std;
<a name="l00006"></a>00006 
<a name="l00007"></a>00007 <span class="keyword">extern</span> <span class="keywordtype">float</span> <a class="code" href="gl_helper_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a>;
<a name="l00008"></a>00008 
<a name="l00009"></a><a class="code" href="gl_helper_8hpp.html#af151554d532190beb0a1fc8e2a2e1445">00009</a> <span class="keywordtype">void</span> <a class="code" href="gl_helper_8cpp.html#af151554d532190beb0a1fc8e2a2e1445">drawSquare</a>(<span class="keywordtype">int</span> side) {
<a name="l00010"></a>00010     side/=2;
<a name="l00011"></a>00011     <span class="comment">//Draw</span>
<a name="l00012"></a>00012     glPushMatrix();
<a name="l00013"></a>00013     glColor3f(0.0f, 0.0f, 0.0f);
<a name="l00014"></a>00014     glBegin(GL_QUADS);
<a name="l00015"></a>00015     glVertex2i(-side, -side); <span class="comment">// The bottom left corner</span>
<a name="l00016"></a>00016     glVertex2i(-side, side); <span class="comment">// The top left corner</span>
<a name="l00017"></a>00017     glVertex2i(side, side); <span class="comment">// The top right corner</span>
<a name="l00018"></a>00018     glVertex2i(side, -side); <span class="comment">// The bottom right corner</span>
<a name="l00019"></a>00019     glEnd();
<a name="l00020"></a>00020     glPopMatrix();
<a name="l00021"></a>00021 }
<a name="l00022"></a>00022 
<a name="l00023"></a><a class="code" href="gl_helper_8hpp.html#a7a81891b1569e58a540aa32925d34120">00023</a> <span class="keywordtype">void</span> <a class="code" href="gl_helper_8cpp.html#a7a81891b1569e58a540aa32925d34120">drawTeapot</a>(<span class="keywordtype">float</span> <a class="code" href="gl_helper_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a>, <span class="keywordtype">float</span> state) {
<a name="l00024"></a>00024     <span class="comment">//Rotate teapot</span>
<a name="l00025"></a>00025     glPushMatrix();
<a name="l00026"></a>00026     glScalef(100.0f, 100.0f, 1.0f);
<a name="l00027"></a>00027     glTranslatef(sin(angle),
<a name="l00028"></a>00028                  cos(angle), 0.0f);
<a name="l00029"></a>00029     glColor3f(1.0f, 0.0f, 0.0f);
<a name="l00030"></a>00030 
<a name="l00031"></a>00031     glScalef(1.0f, state, 1.0f);
<a name="l00032"></a>00032     glutSolidTeapot(0.5f);
<a name="l00033"></a>00033     glPopMatrix();
<a name="l00034"></a>00034 }
<a name="l00035"></a>00035 
<a name="l00036"></a><a class="code" href="gl_helper_8hpp.html#ab8aa40f8b094ca99196d3cb4b5df5060">00036</a> <span class="keywordtype">void</span> <a class="code" href="gl_helper_8cpp.html#ab8aa40f8b094ca99196d3cb4b5df5060">drawCrap</a>() {
<a name="l00037"></a>00037     glPushMatrix();
<a name="l00038"></a>00038     glTranslatef(320.0f, 240.0f, 0.0f);
<a name="l00039"></a>00039     <a class="code" href="gl_helper_8cpp.html#af151554d532190beb0a1fc8e2a2e1445">drawSquare</a>(400);
<a name="l00040"></a>00040     <a class="code" href="gl_helper_8cpp.html#a7a81891b1569e58a540aa32925d34120">drawTeapot</a>(<a class="code" href="gl_helper_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a>, 1.0f);
<a name="l00041"></a>00041     <a class="code" href="gl_helper_8cpp.html#a7a81891b1569e58a540aa32925d34120">drawTeapot</a>(<a class="code" href="gl_helper_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a> + 120.0f*<a class="code" href="types_8hpp.html#a212460e743fecb084d717bb2180c5a56">DEG_TO_RAD</a>, 1.0f);
<a name="l00042"></a>00042     <a class="code" href="gl_helper_8cpp.html#a7a81891b1569e58a540aa32925d34120">drawTeapot</a>(<a class="code" href="gl_helper_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a> + 240.0f*DEG_TO_RAD, 1.0f);
<a name="l00043"></a>00043     <a class="code" href="gl_helper_8cpp.html#a7a81891b1569e58a540aa32925d34120">drawTeapot</a>(-<a class="code" href="gl_helper_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a>, -1.0f);
<a name="l00044"></a>00044     <a class="code" href="gl_helper_8cpp.html#a7a81891b1569e58a540aa32925d34120">drawTeapot</a>(-<a class="code" href="gl_helper_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a> + 120.0f*DEG_TO_RAD, -1.0f);
<a name="l00045"></a>00045     <a class="code" href="gl_helper_8cpp.html#a7a81891b1569e58a540aa32925d34120">drawTeapot</a>(-<a class="code" href="gl_helper_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a> + 240.0f*DEG_TO_RAD, -1.0f);
<a name="l00046"></a>00046     glPopMatrix();
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048 
<a name="l00049"></a><a class="code" href="gl_helper_8hpp.html#af09d4e544e73d211b48d2f6adc044a08">00049</a> <span class="keywordtype">void</span> <a class="code" href="gl_helper_8cpp.html#af09d4e544e73d211b48d2f6adc044a08">drawCircle</a>(<span class="keywordtype">float</span> rad) {
<a name="l00050"></a>00050     glBegin(GL_TRIANGLE_FAN);
<a name="l00051"></a>00051     glVertex2f(0.0f, 0.0f);
<a name="l00052"></a>00052     <span class="keywordflow">for</span>(<span class="keywordtype">float</span> i=0.0f; i&lt;2*<a class="code" href="types_8hpp.html#a598a3330b3c21701223ee0ca14316eca">PI</a>; i+=0.25f) {  <span class="comment">//Change increment to lower for better looking circle</span>
<a name="l00053"></a>00053         glVertex2f(rad*cos(i), rad*sin(i));
<a name="l00054"></a>00054     }
<a name="l00055"></a>00055     glVertex2f(rad, 0.0f);
<a name="l00056"></a>00056     glEnd();
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058 
<a name="l00059"></a><a class="code" href="gl_helper_8hpp.html#a7c8a4c51d86286f4779ab2e9d2625aa7">00059</a> <span class="keywordtype">void</span> <a class="code" href="gl_helper_8cpp.html#a7c8a4c51d86286f4779ab2e9d2625aa7">normalize</a>(<a class="code" href="structs__vector.html">s_vector</a> &amp;v) {
<a name="l00060"></a>00060     v.<a class="code" href="structs__vector.html#a5f391a150c90caba95e29898f47e4343">x</a> /= <a class="code" href="gl_helper_8hpp.html#af530c2beb2129c3fab823e98e5749b88">absVector</a>(v);
<a name="l00061"></a>00061     v.<a class="code" href="structs__vector.html#a38d7ef8912bdd7a9146e6a560fe500d3">y</a> /= <a class="code" href="gl_helper_8hpp.html#af530c2beb2129c3fab823e98e5749b88">absVector</a>(v);
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063 
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